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B. G. DODGE & T. WEAVER. AUTOMATIC CORK BLCCKINC AND PINISHINC MACHINE.

No. 374.891. Pmnted Dec. 1s, 1887.

(Model.)

(Model.) I AA sheens-sheet 2.

No. 374,891. Patented Deo. 13, 1887.

N. PETERS. vPmio-Linhogmplw. washington. RC.

4 Sheets-Sheet 3. B. G. DODGE 8v T. WEAVER. AUTOMATIC CORK BLOCK-ING ANDFINISHING MACHINE.

(Model.)

No. 374,891. PatentedDec. I3, 1887.

4 Sheets-Sheet 4.

E. G. DODGE E T. WEAVER. AUTOMATIC CORKBLUKING AND PINISHING MAGHINE.

No. 374,891. Patented Deo. '13, 1887.

y(Model.)

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'UNITED STATES PATENT OFFICE@ BYRON G. DODGE, OF LANCASTER, ANDTHEOPHILUS VEAVER, OF HARRIS- BURG, PENNSYLVANIA; SAID WEAVER ASSIGNORTO SAID DODGE.

AUTOMATICv COBK BLOCKING AND FINISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 374,891, dated December13, 1887.

Application filed July (i, 1885. Serial No. 170.756. (Medel.)

ifo all whom it may concern:

Be it known that we,'BYRoN G. DoDGEand THEOPHILUs WEAvER, citizens ofthe United States, the iirst named residing at Lancaster,

county of Lancaster, and State of Pennsylvania, and the last residing atHarrisburg, in the county of Dauphin and the same State, haveinventedcertain new and useful Improve ments in an Automatic Cork Blocking andio Finishing Machine; and we do hereby declare that the following is afull, clear, and exact description of the invention, which will enableothers skilled in the arts to which it appertains to make and use thesame.

The object of our invention is to provide mechanism adapted to seize thebar of corkwood when introduced thereto; to forward it to the knife forsevering it into blunt wedgeform blanks, which have their heads andtaper ends alternately reversed relative to the succeeding ones; to takehold of the blank before it is severed; to elevate the same as soon assevered; to rotate it and round and finish it by means of a knifeadapted to gradually come lower as to the plane of its rotationuntil-the cork is finished, and mechanism for releasing the finishedcork and again bringing the work-holding spindles to seize the nextblank automatically, as hereinafter more fully 3o described, and pointedout in the claims, reference being had to the accompanying drawings,making a part of this specification, in which- Figure lis a frontelevation of our machine,

holding therein a cork as in course of being linished; Fig. 2, a topview of the same machine; Fig. 3, a perspective view of the support ofthe spindles; Fig. 4, a 'similar` view of the spindle-shifting bar, withattachments and 4o its actuatingspring; Fig. 5, a similar view of thekeeper-plate for said bar; Fig. 6, asimilar view of the feed-slide andthe feedtable; Fig. 7, a similar view of the swinging housing supportingthe spindle-holding rack and the feedtable; Fig. 8, a similar view of abar of corkwood marked for blanks; Fig. 9, a cross-section of therack-stem, its housing, the shiftingbar, its keeper-plate, and theattaching-stud of the housing; Fig. 10, a perspective View of 5o theadjustable top frame of the machine, provided with feedniotionattachments and with the main transverse shaft having cams thereon. Fig.1l is a detail showing a cam and spurgear. .In the further descriptionsimilar referenceletters denote the same parts in all the views. Thestationary machine-frame consists of the uprights l 3 and the horizontalbraces 2,4, and 6. Upon the horizontal end braces 6 of said frame, whichare at its mid-height, is supported the adjustable 'frame A A A4, whichsupports thereon all the coacting mechanisms excepting iinishingknife Xand the means for rotat. ing it and adjusting it vertically, its axisbeing in the shaftNV. Said shaft is support-ed at its top in a bearingagainst the brace 2 by means of a cap-plate bolted thereto, and it hasits foot end in a socket in the lever N, its sole support below. Saidlever is pivoted vto a. part, N3, )rojecting from the brace 4, and theopposite end, N5, of the lever is provided with the hanger or rod N,\vhose hook-form upper end `rests onthe grooved periphery of theeccentric N on the shaft NVE vertically above said end N5. By thesemeans said vertical 7 5 shaft W3 and the knife X thereon will be raisedand lowered once during every revolution of the counter-shaft V'Z, asrequired iu rounding and finishing the work N in course of making eachcork. Said work (shown as a partially-linished cork in Fig. l) is begunwith a blank, a a', of blunt wedge form, as denoted by the lines on thebar of cork-wood shown in Fig. 8, in which the blunt point a and thehead a of each blank succeed, respectively, the head'and the blunt pointofthe next blank, that as little wood as possible shall be wasted. Theblank which is foremost is seized by the work-holding spindles before itis severed from said bar, and held not only while being severed, butuntil the work becomes a finished cork.

Our machine is therefore adapted to chuck or hold the work before it issevered from the bar, lift it from the feed-table, revolve it, and whenfinished let it drop an instant before the spindles are lowered forseizing thenext blank, as will be hereinafter more fully dcscribed. y

Upon the horizontal braces G of the stationary frame is securedadjustably the movable framel A A Ai by means of screwbolts i11- IOOserted into said braces through the slots A5 in the transverse parts AlofA said frame. The object of securing said frame adjustably is that asthe knife X becomes of less diameter by being ground away thework-holding NspindlesQ Q may be brought up to said knife by adjustingthe frame forward on which said spindles are supported. Said frameconsists ofthe parallel longitudinal front and rear braces, A A',respectively, the front brace being widened vertically and joined to therear one by the transverse parts A", which are cut away at A to clearthe uprights 3 and permit the frame to be adj usted for the purposedescribed. Upon the transverse parts A'L are the raised bearings ai, inwhich isjournaled the countershaft V, as shown. To the under side ofthebraces A A is secured the main counter-shaft W2, as shown. Saidcounter-shafts communicate with each other by the bevel-gears 'W6 and N2respectively, andthe shaft W is provided with the pulley Lt, whereby itconnects by the belt g2 with the counter-shaft Q2, which latter isprovided with the pulley L and with the pulleys r1", arranged as shown.The belts q g2 connect the last-named pulleys with the pulleys Z Z',respectively, on the shafts of the spindles Q Q. The shaft VZ isconnected by any suitable means with thernain driver-shaft WV. To thefront side of the widened part of the brace A as a standard isconnectedfby the journatstud b b2, the housing B, formed with theundercut vertical way B3 in its front for receiving and guiding` thereinthe stem F 5of the vertically-movable rack F K 7s, which supports tl1espindles Q Q in the rests K, as shown in Figs. l and 3. The journal-studb b2 has its middle part, b', formed as thejournal on which the housingB swings or rocks, the latter being joined rigidly to the part b of saidstud. The journal b works in a bearing in the central part of the braceA, as shown. The inner end, b2, of saidjournalfstud is formed as a flattenon, which snugly iits the longitudinal slot m in the spindle-shiftingbar M2, which works back and forth thereon as its sole support, and saidtenon also tits tixedly in a hole in the keeper-plate n, a transversekey, n', retainingitsecurelytherein. Saidkeeperplate, being made capforni, embraces the upper and lower edges of said bar MVand sets orrides against the inner side of the brace A in such manner as to bothkeep said shifting-bar against the brace A and to guide it in itsreciprocatory movements.

The forward end,M*,of the shifting-bar M2 is formed as an arc-headadapted to bear against the cam Z2 on the shaft W2, whereby it istripped or reciprocated at every revolution of the shaft. On the innerside ofsaid arc-head M'L is a receptacle in which is supported one endofthe spiral spring N3. In the forward end of the keeper-plate u is thereceptacle a2, in which is inserted the other end of said spring, whichacts to keep said arc-head pressed against said earn, and therefore byits tension retracts said bar as soon as it has been fully tripped. Therear end ofsaid bar Mzis formed with the part M, to which is attachedthe lower end of the arm M, which is extended, as shown, to formconnectionwith the shiftingspindle Q', as follows: The upper end of saidarm is aslotted or divided wrist, 'MQ adapted to embrace the shaft ofthe spindle Q betweenthe collars m m2 thereon, as bshown in Fig. 2, forretractingsaid spindle longitudiuallywhen said shifting-bar is trippedby said cam. After the cam has its full throw the spindle is returned byspring-tension, as described, and the burrs upon theinner ends of thespindles Q Q'hold the work N between them during the greater part ofeach revolution of the shaft W.

To the brace A is secured the post l), to be vertically adjustable, asby means of the screwbolts D2,screwed into said braceinside through theslots I)3 in the post, thereby binding it against said brace. The top ofthe post has a V-shaped cut therein between the upwardly taperedabutments D', and there extends into said cut the tongue E of thefeed-table E, and it engages said abutnientsboth ways for reversing thefeed-tables position. The latters throw is increased as said post israised higher.

The means for actuating the feed-table are as follows: Said table ispivoted on top of the housing B to swing nearly horizontally when thehousing swings vertically. The housing is provided with the journal-studb b2, rigidly attached thereto, which stud works in a bearing in thebrace A, in which it is retained, as will be hereinafter explained, aswell as the means for rocking the housing to have a uniform throw. Nowthe throw of the fulcral support of the feed-table being invariable, itsown throw will be modited by the engagement of the tongue E' thereofwith the abutments D on said post, for the higher the post is set theless will be the lost motion at said tongue in its engagement with saidparts of the post, and hence the greater will be the throw of the tableboth'ways, and at the same time the greater will be the Obliquity of thecut made by the knife X in severing the blanks and by the knife X iniinishing the work N. The said housing B andthe spindle-holding rack F K7c supported thereon are actuated as follows: The housing is providedwith the arm B', formed on its under side with a segmental bearing,against which the rotating cam Si works during about one-half of itsrevolution, thus canting the housing one way. On the opposite side isthe flat spring d, arranged to constantly bear against the housing forreversing its inclination after said cam has had its full throw. Saidspring then firmly sustains the housings arm at rest on the cam whileits circular part is engaging it.

The cam S5 is formed on or secured to the disk of the spur-gear S2, andthey unitedly are mounted on thejournal-stud SO, by which they aresecured to the front face of the brace A, as shown. Upon the end of themain shaft XW, exterior to the front face of said brace, is keyed thespur-gear S,havinghalfthe nu mber ofteeth IOO IIO

that the gear S2 has,which is driven by it, thus causing the housing Band the rack F K k and the spindles Q Q supported thereon to return 'tothe same inclination only once for every two revolutions of the shaft W2and for every two intermitted operations of the coacting mechanisms, aswill be hereinafter described.

In front of the gear-wheel S is the circular disk or guard S", and infront of said disk is the segmental cam S4, all said three parts beingunitedly secured onto the shaft W, the major part of the cams peripherybeing circular and the less part thereof being an eccentric curve ofgreater radius. Upon said periphery rests the foot J of the lever J,which is pivoted at J'z to the upright b3 on the frame A A A4, and h asits opposite end formed with a longitudinal slot, through which a screwbolt or stud,f, connects the lever to thepart F of the rack F K 7c, asshown. Said slot is required to allow said stud to shift therein whenthe said housing swings back and forth. By said lever is said racksolely sustained, and has its position determined by the position of thefoot J on the periphery of the cam S4. Said rack will therefore beraised and let down during every revolution of the cam, the major partof the cams periphery allowing said foot and the rack supported therebyto stand stationary in the elevated position during the major part ofeach revolution of the cammthat is, while the work N is being roundedand inished--the knife X being all the while gradually let down to theproper level for finishing the work by the means already described.

Vhen the raid rack, after finishing a cork, is let down by gravity, asthe foot J traverses the rest of the cams periphery, the extended foot tof the trip-bar S lets down the circular knife X', the bar being at toppivoted to the arm R, upon whichthe knife is ljournaled at its upperend. Meanwhile, as the said rack is being let down, the feed mechanismbrings forward the cork-wood upon the table E, as will be presentlydescribed. Upon the journal of the knife X is fixed the pulley V', whichis connected with the pulley T by the belt R. The pulley T is double,and is connected by belt with a pulley, G, on the main shaft XV' orother shalt. rlhe pulley T is on a shaft which is the pintle ofahinge-joint at the union of the arm R with the swaying standard b. Thelatter is pivoted below by the bolt C to an abutment of the frame A AA", and it is connected with the stem F of the rack by the link U3,pivoted to said stein, and having said hinge-pintle as its other pivot.The object of connecting said standard with the rack is that the knife Xshall be caused to descend as nearly as possible onto the middle of thefeed-table, longitudinally viewed, notwithstanding the reversingmovement of the table.

The feed mechanism for working forward the bar of cork-wood upon thefeed-table consists of the slide or casing H3, retained and guided uponthe feed-table, of the bent lever 0, pivoted to the supports p2 p3 atthe pivots p'p through the limbs O'Oz, as shown in Fig. l0, of theconnecting-rod P, having its ends hooked onto or pivoted to said slideand lever at the eyes HZ and t, respectively, of the disk L5, keyed onthe shaft W`z and provided with the tappet t, adapted to engage the footOL of said lever and to trip it at each revolution of said shaft foradvancing said slide, and of the spring Z, hitched at its ends to theframe A A AL and tothe said foot 0*, for retracting said slide aftersaid tappet has passed said foot.V

Said slide is formed with two parallel sides, a bottom, and acrosspiece, H, at top, and said sides have on them interiorly the ledgesH4, arranged above the bottom far enough to admit snugly thereunder thefeed-table E, as shown in Fig. 6. rlhe flat springs H it are attached tosaid erosspiece and sides, as shown, and they are adapted to bear on thebar of cork-wood to hold it properly on the feedtable and push itforward thereon, and the feed-table has thereon the fiat spring H5, asshown, for retaining the said bar in place while the slide is beingretracted. The said slide operates with a definite throw in the forwarddirection, but returns by the sole energy of the spring Z.

Upon the feed-table at its inner end is the stop e2, adapted to arrestthe advance of the bar of cork-wood -on said table at or a little beforethe slide 'H3 has completed its throw. The springs H h hold onto saidbarmainly by frictional contact, and will climb on the bar to permit theslide to have its full throw. The throw of the slide may be changed bymaking the tappeti*l adjustable upon the disk L, to stand farther off ornearer to the axis of the shaft W, for the throw of the slide will be asis the radial distance of the tappet from said axis. The throw of theslide is completed an instant before vthe rotary severing-knife X iscaused to descend by the mechanism and as described. 1

The main counter \f 2 is provided with the i bevel-gear W, which mesheswith the bevelgear W on the shaft V and drives the same constantly. Thelatter shaft is coupled by the belt qL with the shaft Q and drives itintermittently,or only when the rack F K k is elevated, said belt beingonly then taut. By this arrangement the spindles Q Q will not rotatewhen they are engaged in the act of seizing the blank before it issevered, but will rotate as soon as said rack is raised..

Ve claim l. In a cork-cutting machine, the combination, with thestationary frame thereof, having the iinishing-knife and its shaftsupported IOO thereon, and means for raising and lowering ing spindlessupported on the movable frame, and of means for operating the spindles,also mounted on and shifted with said frame when it is adjusted,substantially as and for the purposes set forth.

2. In acorkblocking and finishing machine. the combination, with themovable frame A A Asecured adj ustably on the st-ationary frame thereof,of the swinging housing B, secured to the front brace, A,of said frameby the journalstud b b2,rigidly attached to the housing, of thefeed-table E, pivoted upon the top of said swinging housing, of the postD, formed with the slots D3 in its basal endand secu red therethrough bythe bolts D2 to the inner face of the brace A and having its upper endformed with the V-form cut between the projections D', the projectingtongue E of the feed-table reaching into said cut and engaging saidprojections both Ways for reversing said tables direction, of thepivoted cam S5, adapted to engage the under side of the arm B of saidhousing for canting it, and ofthe spring d, arranged oppositely andexerted againstthe housing for returning it and holding it engaged withsaid cam, as and for the purposes set forth.

3. In a cork-cutting machine, the combination, with the stationary framethereof and with the rounding and finishing knife mechanism mountedtherein, of the movable frame A A A4, having pivoted to its brace A thehousing B, provided with the stud b b2, to swing vertically upon theface of said brace, of the feed-table E, pivoted on the top of theextension C on the housing to swing horizontally and having the tongue Eprojected beyond its pivot, ofthe vertically-adj ustable post l),secured upon the inside of said brace and having said tongue working inthe V-form cut in the top thereof for regulating the throw of saidtable, of the pivoted cani S5, coupled with the gear-Wheel S2, arrangedfor engagingthe arm B on said housing, of the spring d, arranged to bearagainst said housing and reciprocate with said cam for rocking thehousing, and of the gear-wheel S' on the shaft W2, engaged with theWheel on said cam for driving it and its coacting mechanisms,substantially as and for the purposes set forth.

4. In a cork blocking and finishing machine provided with thefinishing-knife X and means for mounting and operating its shaft NVB torcciprocate vertically, the combination therewith of the pivoted housingB, formed Witha vertical Way thereon and with the lateral arm B', of therackF K k,formed with the horizontal bearings K and having the stemF,fitted to and retained in said way to reciprocate vertically therein,of the work-holding spindles Q Q', supported axially in line with eachother in said bearings, of the pivoted lever J, provided with the foot Jand having a slotted connection at-its inner end with said rack, of thecam S, supporting on its periphery said foot of the lever, and therebysaid rack, of the cam S5, provided with the gear-wheel S2,\vhich mesheswith the gear-wheel S, so connected in action with said other cam thatthe latter shall revolve twice as fast as that having engagement withthe arm B for canting said housing, and of the spring (Leo-operatingwith the cam S5 for working said housingboth Ways so that said knifeshall equally finish corks Whose points and heads are presented theretoalternately reversed, as herein set forth.

5. In a cork cutting machine having the movable frame thereof providedwith the vertically-swinging housing pivoted thereto, and having thehorizontally-swinging feed-table E, pivoted on top of said housing, andworking, by an extension thereof, in a V-forni notch in the top of thepost D, secured on said frame, the combination, with said parts, of theslide H3, guided on said table longitudinally and adapted byspring-detents H h to feed inward a bar of cork-wood on the table, ofthe rotary knife X,hung to swing vertically onto said table and sever ablank, a a, from said bar, so that each successive cut shall produceablank head and point reversed to those of the preceding blank,of thelever O, coupled with said slide bythe link P and having its foot O4intermittently engaged by the tappet t and constantly retracted by thespring Z, for reciprocating said slide, of the iutergeared cams S4 andS5, the former engaging the trip-bar S,for raising and lowering saidknife,and the latter engaging the arm B on said housing,and with thespring d,rocking the housing for changing the direction of said table,and of means for rotating said knife and cams, substantially as shownanddescribed. Y Y

6. The combination ofthe feed-table E, pivoted on top of the housing B,which latter is pivoted to the front brace of the movable portion of themachine-frame to permit it to cant right and left, of the xed parts D',between which a part ofsaid table works for reversing the same when thehousing cants either way, of the feed-slide H3, guided and reciprocatedalong the edges of said table and adapted for advancing the bar ofcork-wood thereon, of the stop for arresting the advance ofsaid bar, ofmeans for changing the throw of said slide, of the rotary knife X,mounted and operated to swing on the hinging axis of the pulley T, bywhich latter it is rotated, and of the intergeared cams S* S5co-operating as set forth.

7. The combination,WiththehousingB, pivoted to the brace A to swingvertically, of the table E pivoted ou top of said housing, and having anextension working in a notch in the top ofthe fixed post D, forreversing its direction,of the rack F Kk,having its stem F guided insaid housing, the lever J having a slotted connection with said stem andits opposite end pivoted to the uprightl, ofthe cam Ssupporting on itsperiphery thefoot J of said lever, that it and said rack shall bereciprocated at each revolution of said cam, of the arm R, pivoted tothe swaying part b4 and provided with theV tripbar S,having its extendedfoott also sup ported on the periphery of said cam, substantially as IOOIIO

described, so as to hold thereby said arm elevated an interval longerthan said rack is elevated, to give the feed-motion time to actmeanwhile, and of the rotary knife X', journaled on the free end of saidarm and having its support b4 joined to said stem by the link c3, as setforth.

8. In a cork blocking and finishing machine, the combination,with thefeed-table E, pivoted and adapted to be reversed alternately by theengagement of an extension thereof with a xed post, as set forth, of thefeed-slide Hprovided with the inner ledges, H, for guiding it upon saidtable,which is inserted between its bottom and said ledges,and alsoprovided with the flat springs H' h', adapted to bear on and engage thebar of cork-wood, of the spring H5on said table, adapted to engage theunder side of said bar, and of the rod l?, pivoted to said slide and lothe pivoted rocking lever O, by which the slide is reciprocated and saidbar fed up, substantially as and for the purpose set forth.

9. In a corkcutting machine, the combination of the feed-table E,pivoted to a movablel support on the machine-frame, of the slide H,provided interiorly with the guiding ledges H4, whereby it is guided andretained on said table, as shown, and also provided with the springs H'lz", adapted to bear on and push forward a bar of cork-wood on saidtable when said slide is advanced, the spring H5 on the feed-table,adapted to retain the bar of cork-wood in place thereon when the slideis being retracted, of thelever O, pivoted to supports on parts of themachineframe and having the foot O extended below the axis ofsaidpivotal points and rebent, as shown, of the rod I?, having itsendsjoined by pivotal con nections with said slide and lever,of theshaft VW, provided with the disk L5, armed with the tappet t, adapted tohave intermittent connection with said foot, and of the spring Z,

.attached to said lever and exerted to retract it and said slide,substantially asset forth.

10. In acork blocking and finishing machine, the combination, with themovable portion of the machine-frame, of the vertically-swinging housingB, provided with the stud b b2,whereby it is pivoted to the front brace,A, of said portion, the housing being formed with the vertical way IB3in it, ofthe rackFK k, formed with the supports K, havingjourualedtherein the spindles Q Q', axially in line with each other, and with thestem F guided in said way,

of the longitudinally-shifting bar M2, formed with the slot m therein,in which it reciprocates upon the flat part Zf" of said stud, wherebythe bar partakes of the swinging movement of the housing, said barhaving one of its ends formed as an arc-head, ma, adapted as an extendedvertical bearing against which the eccentric or cam Z'l works forreciprocating the bar, and having its opposite end provided with thecoupling-arm M, formed with the divided wrist M' above, whereby itembraces the shaft of the spindle Q', provided with the collars in' m2,as shown, of the keeperplate a, formed with recessed base to admit andpermit to be shifted therein said bar, the plate being secured upon thcend b of said stud and formed with the receptacle n2 in its eind, and ofthe spring N3, having its ends set in the receptacles M4 and N3, andexerted to retract said' bar and thereby bring the spindle Q' to bearagainst the` work N, substantially as shown and described.

1l. In a cork blocking and finishing machine, in combination with thestationary frame thereof, provided with the knife X, having its shaft W3vertically carried on the pivoted lever N2 and thereby supported, of therod N4, attached to the free end .of said lever and hooked onto thegrooved eccentric N', of the work-holding spindles Q Q', supportedaxially in line with each other in bearings in the parts K of the rack FK k, of the housing B, pivoted to the movable frame A A' A4 and havingthe stem F of the said rack supported in a vertical way therein, of thepivoted lever J, having a slotted connection with said rack and providedwith the foot J', arranged to constantl y rest on the periphery of thecam S* for thereby sustaining said rack, of the countershaft Q2,journaled in the extensions la of said rack and coupled by the belts qwith the shafts of said spindles, of the counter shaft XV', j ournaledupon the transverse braces of 4the frame A A' A4, and coupled with saidshaft Q2 by the belt g2, in manner set forth, that said spindles shallbc runonly when said rack is elevated, of the shifting-bar M2, providedwith the arm M and thereby coupled with the shaft of the spindle Q', andof a cam on the shaft W2, adapted to engage said shiftiug'bar by anendwise thrust at each revolution of the cam for retracting thereby saidspindle Q' after the finishing-knife has performed its function,substantially as set forth.

l2. The cork blocking and finishing machineframe provided with therotary knife X, hav- IIO ing its shaft W3 supported to have a verticalmovement, in combination with the rotary severingknife X', having itsshaft journaled in the free end of the vertically-swinging arm R, of thebelt R', coupling the shaft of said knife X' with the pulley T, mountedloosely upon the hinge-pintle which connects said swinging arm to itsswaying standard b, of the belt R2, coupling said pulley with adriverpulley, of the trip-bar S, pivoted to said arm and having itsextended foot Z supported on the periphery of the cam S, said bar havinga slotted connection with the lever J, whereby it is guided in itsvertical movements, of the strap c, pivoted to said standard b4 and atits opposite end to the housing B, so that as the latter cants saidstandard shall be caused thereby to accompany it, or to sway, and thusbring the severing-knife properly in place upon the cork-wood on thefeed-table E, of the lever J, pivoted to the fixed standard b3 andhaving a slotted connection at its opposite end with the rack F K k, andbeing provided with 'the foot J', whereby it is supported on theperiphery of the cam S4, by which said lever and rack are verticallyreoiprooated at each revolution of the cam for bringing the Workgradually up to be rounded and finished by the knife X, of theshifting-bar M2, provided with the arm M, whereby it is connected withthe shaft of the spindle Q', as set forth, and also provided with thearc-head M, and of the spiral spring N3, having its one end inserted ina receptacle next said head and its other end inserted in a receptacle,n2, on the adjacent end of the keeper-plate n, the spring being exertedto revolution of said shaft, and by these means hold said are-head inContact with the cam Z2 on the shaft W2, whereby it is moved at each I5retreating the spindle Q for releasing the linished Work, all the(3o-operating mechanisms performing their functions substantially as andfor the purposes set forth.

BYRON G. DODGE. THEOPHILUS VEAVER. Witnesses:

G. W. ACRES, CHARLES SNYDER.

